Center Roof Antenna Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the rain sensor cover. (Vehicles with auto light/wiper system).
3. Disconnect the rain sensor connector. (Vehicles with auto light/wiper system)
4. Partially peel back the seaming welts.
5. Remove the following parts:
a. Sunroof seaming welt (vehicles with sunroof)
b. A-pillar trim.
c. Front scuff plate.
d. Rear scuff plate.
e. B-pillar lower trim.
f. Upper anchor of the front seat belt.
g. B-pillar upper trim.
h. Rear seat cushion.
i. Tire house trim.
j. C-pillar trim.
k. Map light.
l. Sunvisor.
m. Assist handle.
n. Headliner.
6. Disconnect the connector.

7. Remove the ground plate.
8. Remove the center roof antenna in the direction of the arrow (2) shown in the figure while pressing the center roof antenna tabs in the direction of the arrow (1).

9. Install in the reverse order of removal.
10. After installation, verify that the rubber of the center roof antenna is installed to the roof panel with no space between them.
5HB1. Disconnect the negative battery cable..
2. Remove the rain sensor cover. (Vehicles with auto light/wiper system).
3. Disconnect the rain sensor connector. (Vehicles with auto light/wiper system)
4. Partially peel back the seaming welts.
5. Remove the following parts:
a. Sunroof seaming welt (vehicles with sunroof)
b. A-pillar trim.
c. Front scuff plate.
d. Rear scuff plate.
e. B-pillar lower trim.
f. Upper anchor of the front seat belt.
g. B-pillar upper trim.
h. Rear seat cushion.
i. Tire house trim.
j. Trunk side upper trim.
k. C-pillar trim.
l. Map light.
m. Sunvisor.
n. Assist handle.
o. Headliner.
6. Disconnect the connector.
AM/FM type

AM/FM/SIRIUS type

7. Remove the ground plate.
8. Remove the antenna rod.
9. Remove the center roof antenna in the direction of the arrow (2) shown in the figure while pressing the center roof antenna tabs in the direction of the arrow (1).
AM/FM type

AM/FM/SIRIUS type

10. Install in the reverse order of removal.
11. After installation, verify that the rubber of the center roof antenna is installed to the roof panel with no space between them.
Test yourself
A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.